What is MIME type "application/x-epoc-app"?

A MIME type is a string that tells browsers and other tools how to handle a particular kind of file.

The MIME type application/x-epoc-app marks packaged files used for running applications on the EPOC operating system, better known as Symbian OS. These files store compiled code written in the OPL language, which was common on older mobile devices.

They tell the system that the file is a program package. This identification helps the device know how to execute the file properly. For example, when a user opens a file with a APP link, the system recognizes it as an application rather than simple data.

Key points and uses:

Main Purpose: To run OPL-based mobile apps on EPOC/Symbian devices.
System Integration: Ensures that the mobile operating system loads and executes the app correctly.
Development Use: Used by developers to package and distribute programs in a format native to older mobile platforms.

The MIME type is a crucial identifier on systems that rely on file-type information to launch the correct applications. Learn more about file types and their handling by visiting resources like Filext.

Associated file extensions

.app

Usage Examples

HTTP Header

When serving content with this MIME type, set the Content-Type header:


    Content-Type: application/x-epoc-app

HTML

In HTML, you can specify the MIME type in various elements:


    <a href="file.dat" type="application/x-epoc-app">Download file</a>

Server-side (Node.js)

Setting the Content-Type header in Node.js:


    const http = require('http');
    
    http.createServer((req, res) => {
      res.setHeader('Content-Type', 'application/x-epoc-app');
      res.end('Content here');
    }).listen(3000);

Associated file extensions

.app

FAQ

What is a MIME type?

A MIME (Multipurpose Internet Mail Extensions) type is a standard that indicates the nature and format of a document, file, or assortment of bytes. MIME types are defined and standardized in IETF's RFC 6838.

MIME types are important because they help browsers and servers understand how to process a file. When a browser receives a file from a server, it uses the MIME type to determine how to display or handle the content, whether it's an image to display, a PDF to open in a viewer, or a video to play.

MIME types consist of a type and a subtype, separated by a slash (e.g., text/html, image/jpeg, application/pdf). Some MIME types also include optional parameters.

How do I find the MIME type for a file?

You can check the file extension or use a file identification tool such as file --mime-type on the command line. Many programming languages also provide libraries to detect MIME types.

Why are multiple MIME types listed for one extension?

Different applications and historical conventions may use alternative MIME identifiers for the same kind of file. Showing them all helps ensure compatibility across systems.